Hong Kong protests: police use water cannon on demonstrators

Hundreds of thousands had braved rain to stage peaceful march in triad-linked districtHong Kong police have fired teargas and for the first time used a water cannon to disperse protesters as a weekend of violent clashes dashed hopes of a return to peace after a week of relative calm.Hundreds of thousands of people had earlier braved rain on Sunday to stage a peaceful, police-sanctioned march in Tsuen Wan, an area of the city noted for its links with triad gangsters, after clashes on Saturday whe